Shenzhen Zhongnuo Testing Technology Co., Ltd. specializes in explosion-proof CCC certification consulting services and boasts a wealth of consulting cases in the field. We are well-versed in the application process and technical requirements for explosion-proof 3C certification, offering services such as application assistance and factory audit guidance for clients seeking this certification.
What test items are required to apply for an explosion-proof certificate?
Explosion-proof products require passing relevant testing requirements of the explosion-proof standards to obtain an explosion-proof certification.
Different explosion-proof types, catering to equipment used in various explosive environments, require different explosion-proof testing items.
Many clients also want to know what specific testing items are required for explosion-proof products? What are the specific requirements for the explosion-proof design of the product?
Below, we'll provide examples of common explosion-proof testing projects.
For example, with intrinsically safe products, general test items include appearance and structure inspection, spark ignition test, dielectric strength, battery and battery pack testing, temperature rise test, transient energy test, etc.
Explosion-proof products primarily undergo tests including heat and cold resistance tests, internal ignition without propagation of explosion, shell pressure resistance, IP testing, temperature rise tests, etc. Different testing items,
Each test item is designed to ensure that different modules or components of the product meet explosion-proof standards and fulfill the requirements for explosion-proof performance.
If a company is designing explosion-proof products and is unaware of the explosion-proof standards requirements,
ZhongNuo Inspection can provide guidance services for explosion-proof circuit design and explosion-proof structural design.
Inclusive of explosion-proof standards, design key points, drawings guidance, and capable of handling explosion-proof testing and certification services.
Need this service? Feel free to send a private message to Shenzhen Zhongnuo Inspection Technology Co., Ltd. anytime!

What are the requirements for obtaining coal safety certification and mine safety certification?
Coal Safety Certification and Mine Safety Certification are mandatory certifications for mining products and equipment.
Coal safety certification is for equipment used in coal mines, while mine safety certification is for non-coal mine equipment.
Certificates are all applied for, reviewed, and issued at the Anbang Standards Center. Validity is for 5 years, with annual supervisory evaluations required.
To obtain the Coal Safety Certification and Mine Safety Certification, both product testing and factory inspections are required.
The applicant must possess design and R&D capabilities and provide complete product design drawings.
And it's required to have an in-house production facility. Some products can also apply for Coal Safety Certification and Mine Safety Certification through OEM.
If dealers or users, among others, do not meet these criteria, they are not eligible to apply for the Coal Safety and Mine Safety Certification.
Shenzhen Zhongnuo Inspection, as a coal safety and mine safety certification body, is well-versed in the standards and requirements.
A team of engineers and factory audit service.
We offer services ranging from online application, product design and modification, technical drawing revisions, and factory inspections.
Facilitate businesses in obtaining coal safety and mine safety certifications smoothly.
Our successful cases include light boxes, remote controls, fiber optic temperature measurement devices, sensors, air compressors, mobile phones, thermal imaging cameras, and patrol robots, etc.
If you have any needs in this regard, feel free to send a private message to Shenzhen ZhongNuo Testing Technology Co., Ltd. for further communication!

What should be noted when applying for an explosion-proof 3C certification?
Is the product design in compliance with the GB/T3836 standards?
2. Can certification documents be provided?
(1) Technical Drawings: Includes circuit diagrams, assembly drawings, structural drawings, PCB layouts, numbering diagrams, BOM sheets, etc.
(2) Product Enterprise Standards and Instruction Manual
(3) Product Name, Model Number, Applicant Company
(4) Samples: Complete unit samples, batteries, uncapped circuit boards, non-metallic material surface blocks, etc.
(5) Additional Materials: Casting Sealing Process Documentation, Copy of Explosion-Proof Certificate for Ex Components, Battery Testing Report, Shell Material Testing Report, Wireless Transmission Power Testing Report, etc.
Not all of the above information is required; it depends on the actual structure of the product and its explosion-proof type.
3. Do you have engineers with explosion-proof technology expertise?
4. Are there specific requirements for the certification body and explosion-proof rating?
5. Next is the budget for the costs.
For more details, please DM Shenzhen Zhongnuo Inspection Technology Co., Ltd. for communication!

Can ODM/OEM companies apply for explosion-proof certification and explosion-proof 3C certification? What are the requirements?
Many customers are asking whether their products are OEM-manufactured, ODM-branded, or purchased.
Can we apply for an explosion-proof certificate or explosion-proof 3C certification?
Here, Zhongnuo Inspection introduces the requirements and conditions for applying for the explosion-proof certification and the explosion-proof 3C certification.
If applying for an explosion-proof certification, the company only needs to provide product design drawings and samples.
No specific requirements for a production factory. Therefore, whether it's an OEM, ODM, or a product purchased directly, only
Provide the required drawings and samples for certification, and they can all apply for the explosion-proof qualification certificate.
Of course, the provided drawings and samples must comply with the requirements of the explosion-proof certification standards.
To obtain the explosion-proof 3C certification, in addition to the explosion-proof compliance certificate, a factory audit and an annual supervision review are also required.
Therefore, the applicant must have their own manufacturing factory/OEM/ODM factory.
The application process is also more complex than obtaining a explosion-proof certification, with higher costs and a longer duration.
ZhongNuo Inspection has been deeply involved in the explosion-proof field for many years, familiar with the requirements of the GB/T 3836 series standards.
Extensive experience in the design and modification guidance for explosion-proof products.
We offer a one-stop service for explosion-proof certification, including design modification, drawing evaluation, application, factory audit, and explosion-proof 3C certification.
We boast a wealth of case studies and experience; feel free to send us a private message!
Explosion-proof 3C Certification Business Consultation Services - Shenzhen Zhongnuo Testing Technology Co., Ltd.